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公开(公告)号:US20240361382A1
公开(公告)日:2024-10-31
申请号:US18579888
申请日:2022-03-15
发明人: Masataka IKESU , Tomonori NAKAMURA
IPC分类号: G01R31/311 , G01R31/28
CPC分类号: G01R31/311 , G01R31/2879
摘要: A semiconductor failure analysis device includes a first analysis unit that emits first irradiation light along a first path set on a first main surface of a semiconductor device, a second analysis unit that emits second irradiation light along a second path set on a second main surface that is a back side of the first main surface, an electric signal acquisition unit that receives an electric signal output from the semiconductor device irradiated with the first irradiation light and the second irradiation light, and a computer that controls the second analysis unit. A size of a first irradiation region is different from a size of a second irradiation region. The computer emits the first irradiation light and the second irradiation light while a state where the entire second irradiation region overlaps the first irradiation region is maintained.
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公开(公告)号:US20240361380A1
公开(公告)日:2024-10-31
申请号:US18765343
申请日:2024-07-08
发明人: JUN HE , YU-TING LIN , WEI-HSUN LIN , YUNG-LIANG KUO , YINLUNG LU
CPC分类号: G01R31/2879 , G01R31/2642 , G01R31/2886
摘要: The present disclosure provides a method and a system for testing semiconductor device. The system includes a signal generator and a module. The signal generator is configured to apply an initial signal to an input terminal of a DUT during a first period; and apply a stress signal to the input terminal in a second period. The module is configured to: obtain an output signal in response to the initial signal and the stress signal at an output terminal of the DUT, the output signal in response to the stress signal including a first sequence and a second sequence, each of the first sequence and the second sequence having a ramp-up stage and a ramp-down stage, wherein a duration of the first sequence is longer than that of the second sequence; and compare the output signal with the stress signal.
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公开(公告)号:US20240361370A1
公开(公告)日:2024-10-31
申请号:US18767126
申请日:2024-07-09
IPC分类号: G01R27/26 , G01R31/26 , G01R31/28 , H03K19/094
CPC分类号: G01R27/2605 , G01R31/2639 , G01R31/2841 , H03K19/094
摘要: Systems and methods are described herein for charge-based capacitor measurement. The system includes a first pseudo-inverter circuit and a second pseudo-inverter circuit. The system also includes a control circuit coupled between the first inverter circuit and the second inverter circuit. The control circuit is configured to generate independent and non-overlapping control signals for the first pseudo-inverter circuit and the second pseudo-inverter circuit. A shielding metal is coupled to the first pseudo-inverter circuit, the second pseudo-inverter circuit, and the control circuit. The shielding metal is configured to dissipate parasitic capacitance of at least one of the first pseudo-inverter circuit or the second pseudo-inverter circuit. A device under test is coupled to each of the first inverter circuit and the second inverter circuit.
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公开(公告)号:US12130306B2
公开(公告)日:2024-10-29
申请号:US17884661
申请日:2022-08-10
发明人: Kwangkyu Bang , Kiljoong Yun , Yun Chang , Jaegyu Choi
CPC分类号: G01R1/0466 , G01R1/0483 , G01R31/2863 , G01R31/2884
摘要: A module substrate for a semiconductor module includes: a wiring substrate having an upper surface and a lower surface opposite to the upper surface, wherein the wiring substrate includes a circuit wiring and a plurality of via holes extending from the upper surface to the lower surface in a thickness direction; a plurality of test terminals respectively provided on the via holes and electrically connected to the circuit wiring, and a fastening thin film provided on the wiring substrate and covering the via holes, wherein the fastening thin film has a predetermined thickness such that a portion of the fastening thin film is penetrated when an interface is pin is inserted into the portion of the fastening thin film through the via hole from the upper surface, and the portion of the penetrated fastening thin film holds the penetrating interface inspection pin.
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公开(公告)号:US20240353481A1
公开(公告)日:2024-10-24
申请号:US18762224
申请日:2024-07-02
申请人: Microtest S.p.A.
发明人: Giuseppe Amelio
CPC分类号: G01R31/2887 , G01R1/06705 , G01R31/2601
摘要: A contact probe for electronic tests includes an upper part having an end portion for contacting a first electronic component; a lower part having an end for contacting a second electronic component; and an elongated and deformable central body interposed between the upper and lower parts. The lower part has an enlarged head with a lower surface intended to rest at least partially onto a horizontal surface, the lower surface having an inclination angle from the horizontal surface onto which it rests when the probe is unbuckled and, when the probe is buckled, it can assume a position in which the lower surface moves to rest entirely onto the horizontal surface, thereby eliminating the inclination angle.
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公开(公告)号:US20240353480A1
公开(公告)日:2024-10-24
申请号:US18756801
申请日:2024-06-27
申请人: Peter James O'Brien , Bradley Robert Yates , Joshua Marcus Yablon , Mark Joseph Koeper , Mario Jesus Olmedo , Oumarou Mbombo Njoya , Evelyn Sze Wing Chin
发明人: Peter James O'Brien , Bradley Robert Yates , Joshua Marcus Yablon , Mark Joseph Koeper , Mario Jesus Olmedo , Oumarou Mbombo Njoya , Evelyn Sze Wing Chin
IPC分类号: G01R31/28
CPC分类号: G01R31/2884
摘要: Methods and apparatus for voltage contrast defect inspection are disclosed. An example apparatus includes a substrate. The example apparatus further includes a virtual ground layer coupled to the substrate. The example apparatus also includes at least one process layer coupled to the virtual ground layer, the at least one process layer including a conductive feature.
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公开(公告)号:US20240353479A1
公开(公告)日:2024-10-24
申请号:US18458382
申请日:2023-08-30
申请人: NXP USA, Inc.
发明人: Kumar Abhishek , Neha Srivastava , Vivek Kumar Yadav , Sanjaykumar Hansrajbhai Kakasaniya , Vikram Joshi
CPC分类号: G01R31/2884 , H03K3/037 , H03K19/20
摘要: A first power supply pad is configured to provide a first power supply to a power domain of the SoC in which the first power supply pad is configured to receive the first power supply from a source external to the SoC. A first signal pad is configured to receive a power ready signal from external the SoC which indicates when the first power supply to the power domain is fully powered up. A first power detector is configured to provide a first power detected output, which, when asserted, indicates presence of a power supply voltage on the first power supply pad. A fault detection circuit coupled to the first power detector and the first signal pad is configured to generate a set of fault flags in response to monitoring a relationship between the first power detected output and a logic state of the power ready signal.
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公开(公告)号:US20240353474A1
公开(公告)日:2024-10-24
申请号:US18758635
申请日:2024-06-28
发明人: Kong-Beng THEI , Jung-Hui KAO , Jing-Jung HUANG , Fu-Hsiung YANG
IPC分类号: G01R31/28
CPC分类号: G01R31/2831 , G01R31/2884
摘要: A plurality of devices for testing, connected in series using one or more redistribution layers (RDLs), are used to perform a semiconductor device test on a plurality of dies. As a result, the semiconductor device test may support thousands of gross dies per wafer or greater (e.g., 10,000 dies or greater). Furthermore, the RDL(s) may be removed after use. In some implementations, the devices for testing corresponding to the dies may execute the semiconductor device test sequentially. Accordingly, test data may be generated and may include a bit sequence, where a first bit in the bit sequence indicates an overall outcome for the test and one or more subsequent bits in the bit sequence indicate respective outcomes for each semiconductor dies or for each line of the semiconductor device test.
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公开(公告)号:US12123908B1
公开(公告)日:2024-10-22
申请号:US18367333
申请日:2023-09-12
申请人: PROTEANTECS LTD.
发明人: Eyal Fayneh , Guy Redler , Shai Cohen , Evelyn Landman
IPC分类号: G01R31/28 , G01R31/317 , G01R31/3177
CPC分类号: G01R31/2896 , G01R31/31727 , G01R31/3177
摘要: Loopback testing may be provided for one or more transmission output paths of a semiconductor Integrated Circuit (IC). One or more parametric loopback sensors are provided in the semiconductor IC, each parametric loopback sensor being configured to receive a clocked data input signal to a respective transmitter of the IC and a signal from a transmission output path from the respective transmitter of the IC, and to generate a respective sensor output based on a comparison of the clocked data input signal and the signal from the transmission output path for the respective transmitter of the IC. A programmable load circuit is also provided in the semiconductor IC, coupled to each transmission output path.
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公开(公告)号:US12123897B2
公开(公告)日:2024-10-22
申请号:US17127751
申请日:2020-12-18
申请人: XCERRA CORPORATION
发明人: James Hattis , Travis Evans , Waqas Muzammil , Yukang Feng , Jason Mroczkowski , Marty Cavegn
IPC分类号: G01R1/067 , G01R1/02 , G01R1/04 , G01R1/073 , G01R31/26 , G01R31/28 , H01R13/22 , H01R13/405
CPC分类号: G01R1/067 , G01R31/2886 , H01R13/22 , H01R13/405
摘要: A test contactor is disclosed. The test contactor includes two or more dielectric layers and a test probe embedded in the one or more dielectric layers. The test contactor traverses the one or more dielectric layers. The test probe to include an input signal port and an output signal port and the test probe to transmit a test signal from the input signal port to the output signal port.
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